Vivitek Du978 User Manual

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53  – Using the Kensington Security Slot & Using the Security Bar 
Using the Kensington Security Slot 
If you are concerned about security, attach the projector to a permanent object with the Kensington 
slot and a security cable.  
Note:  
Contact your vendor
 for details on purchasing a suitable Kensington security cable.  The security lock corresponds to Kensington’s MicroSaver Security System. If you have any 
comment, contact: Kensington, 2853 Campus Drive, San Mateo, CA 94403, U.S.A. Tel: 800
-535 -
4242, 
http://www.Kensington.com . 
Using the Security Bar 
In addition to the  password protection function and the  Kensington lock, the Security Bar helps 
protect  the projector from  unauthorized removal. See the following picture.    
						

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TROUBLESHOOTING 
Common problems and solutions 
These guidelines provide tips to deal with problems you may encounter while using the projector. If 
the problem remains unsolved, contact your dealer for assistance. 
Often after time spent troubleshooting, the problem is traced to something as simple as a loose 
connection. Check the following before proceeding to the problem-specific solutions. 
 Use some other electrical device to confirm that the electrical outlet is working. 
 Ensure the projector is turned on. 
 Ensure all connections are securely attached.  
 Ensure the attached device is turned on. 
 Ensure a connected PC is not in suspending mode. 
 Ensure a connected notebook computer is configured for an external display. 
(This is usually done by pressing an Fn-key combination on the notebook.) 
Tips for Troubleshooting 
In each problem-specific section, try the steps in the order suggested. This may help you to solve the 
problem more quickly. 
Try to pin point the problem and thus avoid replacing non-defective parts.  
For example, if you replace batteries and the problem remains, put the original batteries back and go 
to the next step.  
Keep a record of the steps you take when troubleshooting: The information may be useful when 
calling for technical support or for passing on to service personnel. 
  
						

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LED Error Messages 
ERROR CODE MESSAGES POWER LED 
BLUE 
TEMP LED 
RED 
LAMP LED 
RED 
Lamp Ready ON OFF OFF 
Start ON OFF OFF 
Cooling ON OFF OFF 
Over Temperature OFF ON OFF 
T1 error 3 blinks OFF 1 blinks 
Thermal Break Sensor error 4 blinks OFF OFF 
G794 error 4 blinks OFF 4 blinks 
Lamp fail 5 blinks OFF OFF 
Ballast temp over 5 blinks OFF 1 blinks 
Ballast circuit short 5 blinks OFF 2 blinks 
Lamp End of lamp life detected 5 blinks OFF 3 blinks 
Lamp did not ignite 5 blinks OFF 4 blinks 
Lamp extinguished during normal operation 5 blinks OFF 5 blinks 
Lamp extinguished during run-up phase 5 blinks OFF 6 blinks 
Lamp voltage too low 5 blinks OFF 7 blinks 
Ballast fail 5 blinks OFF 8 blinks 
Ballast communication fail 5 blinks OFF 10 blinks 
Ballast over temp 5 blinks OFF 11 blinks 
Restrike lamp fail 1 5 blinks OFF 12 blinks 
Restrike lamp fail 2 5 blinks OFF 13 blinks 
Lamp fail 1 5 blinks OFF 14 blinks 
Lamp fail 2 5 blinks OFF 15 blinks 
Fan 1 error 6 blinks OFF 1 blinks 
Fan 2 error 6 blinks OFF 2 blinks 
Fan 3 error 6 blinks OFF 3 blinks 
Fan 4 error 6 blinks OFF 4 blinks 
Case Open 7 blinks OFF OFF 
DMD error 8 blinks OFF OFF 
Color wheel error 9 blinks OFF OFF 
In the event of an error, please disconnect the AC power cord and wait for one (1) minute before restarting 
the projector. If the Power or Lamp LEDs are still blinking or any other situation that isnt listed in the chart 
above, please contact your service center. 
Image Problems 
Problem: No image appears on the screen 
1. Verify the settings on your notebook or desktop PC. 
2. Turn off all equipment and power up again in the correct order. 
Problem: The image is blurred  
1. Adjust the Focus on the projector.  
						

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2. Press the Auto button on the remote control. 
3. Ensure the projector-to-screen distance is within the specified range. 
4. Check that the projector lens is clean. 
Problem: The image is wider at the top or bottom (trapezoid effect)  
1. Position the projector so it is as perpendicular to the screen as possible.  
2. Use the Keystone button on the remote control to correct the problem. 
Problem: The image is reversed  
Check the Projection setting on the Settings 1 menu of the OSD. 
Problem: The image is streaked  
1. Set the Frequency and Tracking settings on the Image->Computer menu of the OSD to 
the default settings. 
2. To ensure the problem is not caused by a connected PC’s video card, connect to another 
computer.  
Problem: The image is flat with no contrast  
Adjust the Contrast setting on the Image menu of the OSD. 
Problem: The color of the projected image does not match the source image. 
Adjust the Color Temperature and Gamma settings on the Image->Advanced menu of the 
OSD. 
Lamp Problems 
Problem: There is no light from the projector  
1. Check that the power cable is securely connected. 
2. Ensure the power source is good by testing with another electrical device. 
3. Restart the projector in the correct order and check that the Power LED is on. 
4. If you have replaced the lamp recently, try resetting the lamp connections.  
5. Replace the lamp module. 
6. Put the old lamp back in the projector and have the projector serviced. 
Problem: The lamp goes off 
1. Power surges can cause the lamp to turn off. Re-plug power cord. When the Power LED 
is on, press the power button. 
2. Replace the lamp module. 
3. Put the old lamp back in the projector and have the projector serviced. 
Remote Control Problems 
Problem: The projector does not respond to the remote control  
1. Direct the remote control towards remote sensor on the projector.  
2. Ensure the path between remote and sensor is not obstructed. 
3. Turn off any fluorescent lights in the room. 
4. Check the battery polarity. 
5. Replace the battery. 
6. Turn off other Infrared-enabled devices in the vicinity. 
7. Have the remote control serviced.  
						

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Audio Problems 
Problem: There is no sound 
1. Adjust the volume on the remote control.  
2. Adjust the volume of the audio source. 
3. Check the audio cable connection. 
4. Test the source audio output with other speakers. 
5. Have the projector serviced. 
Problem: The sound is distorted  
1. Check the audio cable connection. 
2. Test the source audio output with other speakers. 
3. Have the projector serviced. 
Having the Projector Serviced 
If you are unable to solve the problem, you should have the projector serviced. Pack the projector in 
the original carton. Include a description of the problem and a checklist of the steps you took when 
trying to fix the problem: The information may be useful to service personnel. For servicing, return the 
projector to the place you purchased it.  
						

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HDMI Q & A 
Q. What is the difference between a “Standard” HDMI cable and a “High-Speed” HDMI 
cable? 
Recently, HDMI Licensing, LLC announced that cables would be tested as Standard or High-
Speed cables.  
˙Standard (or “category 1”) HDMI cables have been tested to perform at speeds of 75Mhz or 
up to 2.25Gbps, which is the equivalent of a 720p/1080i signal.  
˙High Speed (or “category 2”) HDMI cables have been tested to perform at speeds of 340Mhz 
or up to 10.2Gbps, which is the highest bandwidth currently available over an HDMI cable 
and can successfully handle 1080p signals including those at increased color depths and/or 
increased refresh rates from the Source. High-Speed cables are also able to accommodate 
higher resolution displays, such as WQXGA cinema monitors (resolution of 2560 x 1600). 
 
Q. How do I run HDMI cables longer than 10 meters? 
There are many HDMI Adopters working on HDMI solutions that extend a cable’s effective 
distance from the typical 10 meter range to much longer lengths. These companies 
manufacture a variety of solutions that include active cables (active electronics built into 
cables that boost and extend the cable’s signal), repeaters, amplifiers as well as CAT5/6 and 
fiber solutions. 
 
Q. How can I tell if a cable is an HDMI certified cable? 
All HDMI products are required to be certified by the manufacturer as part of the HDMI 
Compliance Test Specification. However, there may be instances where cables bearing the 
HDMI logo are available but have not been properly tested. HDMI Licensing, LLC actively 
investigates these instances to ensure that the HDMI trademark is properly used in the 
market. We recommend that consumers buy their cables from a reputable source and a 
company that is trusted. 
 
For more detail information check http://www.hdmi.org/learningcenter/faq.aspx#49 
 
  
						

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SPECIFICATIONS 
Specifications 
Model DX977 DH976 DU978 
Display type DMD, 0.7 XGA, Type A DMD, 0.65 1080p, S600 DMD, 0.67 WUXGA, Type A 
Resolution XGA (1024 x 768) 1080P (1920 x 1080) WUXGA(1920× 1200) 
Projection distance 1.2 - 10 m 
Projection screen size 27.6~344.6 25.9~324.9 26.6~334 
Projection lens Manual Zoom 
Zoom ratio 1.5x 
Offset 
(Lens Shift Offset) 112%(109.5%~120%) 115%(111.2%~130.8%) 122%(118.9%~131.0%) 
Vertical keystone 
correction +/- 40 Degree 
Projection methods Front, Rear, Desktop/Ceiling (Rear, Front) 
Data compatibility VGA, SVGA, XGA, WXGA, SXGA, SXGA+, UXGA, WUXGA,  Mac 
SDTV/EDTV/ HDTV 480i, 576i, 480p, 576p, 720p, 1080i, 1080p 
Video compatibility NTSC, PAL, SECAM 
H-Sync 15, 31~91.4KHz 
V-Sync 24~30Hz, 47~120Hz 
Safety certification FCC-B, cUL, UL, CE, CCC, KC, PSB, PCT, CB, ICES-300, UL (Argentina), Taiwan 
Green Mark, China ECO Label 
Operation temperature 5° ~ 40°C 
Dimensions 332.8 mm (W) x255.0 mm (D) x 114.6 mm (H) 
AC Input AC Universal 100-240V 
Power consumption 300W (ECO), 370W (Normal), 
						

							— 60 — 
Projection Distance vs. Projection Size 
 
Projection Distance and Size Table 
DX977 
DIAGONA
L LENGTH 
SCREEN SIZE (INCH) PROJECTION DISTANCE (MM) OFFSET 
(A) WIDTH HHEGHT WIDE TELE 
(INCH) (INCH) (CM) (INCH) (CM) (INCH) (CM) (INCH) (CM) (MM) 
30 24.0 61.0 18.0 45.7 -- -- 5.1 130.6 54.9 
40 32.0 81.3 24.0 61.0 -- -- 6.9 174.1 73.2 
60 48.0 121.9 36.0 91.4 6.9 174.1 10.3 261.2 109.7 
80 64.0 162.6 48.0 121.9 9.1 232.1 13.7 348.2 146.3 
100 80.0 203.2 60.0 152.4 11.4 290.2 17.1 435.3 182.9 
120 96.0 243.8 72.0 182.9 13.7 348.2 20.6 522.3 219.5 
140 112.0 284.5 84.0 213.4 16.0 406.2 24.0 609.4 256.0 
160 128.0 325.1 96.0 243.8 18.3 464.3 27.4 696.4 292.6 
190 152.0 386.1 114.0 289.6 21.7 551.3 32.6 827.0 347.5 
230 184.0 467.4 138.0 350.5 26.3 667.4 -- -- 420.6 
280 224.0 569.0 168.0 426.7 32.0 812.5 -- -- 512.1 
300 240.0 609.6 180.0 457.2 34.3 870.5 -- -- 548.6 
    
						

							– 61 – 
DH976 
DIAGONA
L LENGTH 
SCREEN SIZE (INCH) PROJECTION DISTANCE (MM) OFFSET 
(A) WIDTH HHEGHT WIDE TELE 
(INCH) (INCH) (CM) (INCH) (CM) (INCH) (CM) (INCH) (CM) (MM) 
30 26.1  66.3  14.7  37.3  --  --  5.5  138.8  56.0  
40 34.9  88.6  19.6  49.8  4.9  123.8  7.3  185.1  74.7  
60 52.3  132.8  29.4  74.7  7.3  185.7  10.9  277.6  112.1  
80 69.7  177.0  39.2  99.6  9.7  247.6  14.6  370.2  149.4  
100 87.2  221.5  49.0  124.5  12.2  309.5  18.2  462.7  186.8  
120 104.6  265.7  58.8  149.4  14.6  371.4  21.9  555.2  224.1  
140 122.0  309.9  68.6  174.2  17.1  433.3  25.5  647.8  261.5  
160 139.5  354.3  78.4  199.1  19.5  495.2  29.1  740.3  298.9  
190 165.6  420.6  93.1  236.5  23.2  588.0  34.6  879.1  354.9  
230 200.5  509.3  112.8  286.5  28.0  711.8  --  --  429.6  
280 244.0  619.8  137.3  348.7  34.1  866.6  --  --  523.0  
300 261.5  664.2  147.1  373.6  36.6  928.5  --  --  560.4  
 
DU978 
DIAGONA
L LENGTH 
SCREEN SIZE (INCH) PROJECTION DISTANCE (MM) OFFSET 
(A) WIDTH HHEGHT WIDE TELE 
(INCH) (INCH) (CM) (INCH) (CM) (INCH) (CM) (INCH) (CM) (MM) 
30 25.4  64.5  15.9  40.4  --  --  5.3  135.1  89.7  
40 33.9  86.1  21.2  53.8  4.7  120.5  7.1  180.1  119.5  
60 50.9  129.3  31.8  80.8  7.1  180.7  10.6  270.1  179.3  
80 67.8  172.2  42.4  107.7  9.5  240.9  14.2  360.1  239.1  
100 84.8  215.4  53.0  134.6  11.9  301.1  17.7  450.2  298.9  
120 101.8  258.6  63.6  161.5  14.2  361.3  21.3  540.2  358.6  
140 118.7  301.5  74.2  188.5  16.6  421.6  24.8  630.2  418.4  
160 135.7  344.7  84.8  215.4  19.0  481.8  28.4  720.3  478.2  
190 161.1  409.2  100.7  255.8  22.5  572.1  33.7  855.3  567.8  
230 195.0  495.3  121.9  309.6  27.3  692.6  --  --  687.4  
280 237.4  603.0  148.4  376.9  33.2  843.1  --  --  836.8  
300 254.4  646.2  159.0  403.9  35.6  903.4  --  --  896.6  
 
  
						

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Timing Mode Table 
SIGNAL  RESOLUTION  H-SYNC 
( KHZ ) 
V-SYNC 
( HZ ) 
COMPOSITE 
S_VIDEO COMPONENT RGB 
(ANALOG) 
DP/HDMI 
(DIGITAL) 
NTSC － 15.734 60 ○ － － － 
PAL/SECAM － 15.625 50 ○ － － － 
VESA 
720 x 400 31.5 70.1 － － ○ ○ 
720 x 400 37.9 85.04 － － ○ ○ 
640 x 480 31.5 60.0 － － ○ ○ 
640 x 480 37.9 72.8 － － ○ ○ 
640 x 480 37.5 75.0 － － ○ ○ 
640 x 480 43.3 85.0 － － ○ ○ 
800 x 600 35.2 56.3 － － ○ ○ 
800 x 600 37.9 60.3 － － ○ ○ 
800 x 600 46.9 75.0 － － ○ ○ 
800 x 600 48.1 72.2 － － ○ ○ 
800 x 600 53.7 85.1 － － ○ ○ 
800 x 600 76.3 120.0 － － ○ ○ 
1024 x 768 48.4 60.0 － － ○ ○ 
1024 x 768 56.5 70.1 － － ○ ○ 
1024 x 768 60.0 75.0 － － ○ ○ 
1024 x 768 68.7 85.0 － － ○ ○ 
1024 x 768 97.6 120.0 － － ○ ○ 
1152 x 864 67.5 75.0 － － ○ ○ 
1280 x 720 45.0 60.0 － － ○ ○ 
1280 x 720 90.0 120.0 － － ○ ○ 
1280 x 768 47.4 60.0 － － ○ ○ 
1280 x 768 47.8 59.9 － － ○ ○ 
1280 x 800 49.7 59.8 － － ○ ○ 
1280 x 800 62.8 74.9 － － ○ ○ 
1280 x 800 71.6 84.9 － － ○ ○ 
1280 x 800 101.6 119.9 － － ○ ○ 
1280 x 1024 64.0 60.0 － － ○ ○ 
1280 x 1024 80.0 75.0 － － ○ ○ 
1280 x 1024 91.1 85.0 － － ○ ○ 
1280 x 960 60.0 60.0 － － ○ ○ 
1280 x 960 85.9 85.0 － － ○ ○ 
1366 x 768 47.7 60.0 － － ○ ○ 
1400 x 1050 65.3 60.0 － － ○ ○ 
1440 x 900 55.9 60.0 － － ○ ○